<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>出错了</title>
    <style>
        body {
            background-color: #000;
            color: #fff;
            font-family: 'Arial', sans-serif;
            text-align: center;
            padding-top: 100px;
        }
        
        h1 {
            font-size: 50px;
            text-transform: uppercase;
            letter-spacing: 10px;
            margin-bottom: 40px;
        }
        
        .container {
            display: flex;
            flex-direction: row;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        
        .box {
            width: 100px;
            height: 100px;
            background-color: #fff;
            border-radius: 50%;
            margin: 10px;
            animation: rotate 2s infinite linear;
        }
        
        @keyframes rotate {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }
    </style>

<script>
    window.onload = function() {
        var boxes = document.getElementsByClassName('box');
        
        for (var i = 0; i < boxes.length; i++) {
            boxes[i].addEventListener('mouseover', function() {
                this.style.transform = 'scale(1.2)';
                this.style.backgroundColor = 'red';
            });
            
            boxes[i].addEventListener('mouseout', function() {
                this.style.transform = 'scale(1)';
                this.style.backgroundColor = '#fff';
            });
        }
    };
</script>

</head>
<body>
    <h1>并未找到您要访问的资源</h1>
    <div class="container">
        <div class="box"></div>
        <div class="box"></div>
        <div class="box"></div>
    </div>
</body>
</html>